10 Answers
10

Between cones of cold, water elemental, and frost nova, you should be able to protect yourself while establishing board presence. Don't forget to add two Flamestrikes to your deck -- they'll wipe all of Anub's 4/4 Nerubians at once, which is great for in the late game when he's managed to keep 2 or 3 on the board.

Your goal is to survive long enough to drop big minions and waste him. Alexstrasza (if you have her) will deal a quick up-to 30 damage for you, while big minions like Boulderfist Ogres can take hits from the 4/4 Nerubians, and wail on Anub if left unattended. I was able to field Gruul as well.

Beyond that, keep some beefy taunt minions with at least 5 health (Sen'jin and Sunwalker are good choices) to soak up and outpace his minion growth.

Finally, Anub will only use his hero power if he can't play cards -- with a little luck, you will have fewer 4/4s to deal with, and eventually be able to push through.

I beat her first try with mage. It helped that her deathrattle summon minion card pulled a legendary for me both times.
–
z 'Jul 25 '14 at 10:53

Generally, 4 attack is very useful, especially when coupled with survivability. A few from the Basic Set that come to mind are Chillwind Yeti, Darkscale Healer and Windfury Harpie (yes, I'm serious). All of them can take out 2 Nerubians or one Nerubian and something else.
–
sceniaJul 27 '14 at 17:52

I used priest my first play through.
The deck was essentially the same as the 'Amaz' deck, but I ran two Sunwalkers instead of Rag and Faceless. You could also run Mass Dispel, Sunfury Protector/Defender of Argus with Ancient Watchers and/or Silence.

I've noticed a lot of other people finding themselves at a point where they have drawn their deck and fatiguing before they win.

Alternatively you could run Freeze Mage or Control Mage, like the deck @Raven_Dreamer mentioned.

I've also beaten Anub'Rekhan with the new Zoo variant that Kolento has introduced.

The idea is to throw up a wall of powerful taunt minions like Druid of the Claw and Ironbark protector, and buff other minions into powerful taunters with cards such as Mark of the Wild and Mark of Nature.

Do this as fast as possible with the help of Innervate and Wild Growth.

When you're well protected, you can start throwing down cards like Starfall, Starfire and Swipe in addition to attacking with your minions to finish off the boss.

There are other more powerful Druid cards that fit with this plan too, but if you've got access to those, you probably don't need me to tell you what they are (Ancient of War etc).

The theory there is - you have a lot of high hp taunts, where Anub will run his minions in. Then on turn 3 where he gets the 2/8 taunt you are good to go, as soon as this minion is killed you get one of your high value taunts on the play field and win easily from there.

There's a lot of different answers, but I beat him with a relatively cheap Paladin deck after a couple of tries. Truesilver/Peacekeeper/Equality etc. are very effective at dealing with his hero power. Just be sure to play a lot of taunts.

I beat rekhan with a freeze mage deck as well. Used Mirror Images, Ice Barriers, Frost Bolts, Ice Lances to slow down the assault, then Frost nova, doomsayer a full board that included one of those 2/8 taunts that summons a creature from my deck. Alexstrasza comes out, plus 2 Molten Giants I summoned from my hand after the Doomsayer exploded. Win.

I was able to beat rekhan on the 2nd try with a freeze mage variant. 9th turn alex, 10th turn 2x frost bolt 2x ice lance and hero power. you will need loot hoarders, coldlights, and novice engineers to get to the optimal hand.

I found ramp Druid to be very effective on this fight, and managed to take him out nearly unharmed on my first attempt with a turn 3 taunted Ancient of War. I think any deck with a lot of taunt minions with attack >= 4 and health > 4 should be able to deal with him relatively easily, so a ramp or midrange Druid should be a solid choice.

I have a different deck people never seemed to consider. I ran a warlock deck with lots of cheap efficient creatures. I also had a lot of those 4 damage to create spells and other things good at removing creatures. Essentially everything in my deck was super cheap and extremely efficient for cost. Using the warlock ability I was able to get an extra card each turn which allowed me to gain control of the board quickly and keep it.